David A Muller
@davidamuller.bsky.social
"Learning more and more about less and less" Materials Physics and Electron Microscopy at Cornell (he/him) https://muller.research.engineering.cornell.edu/
Seeing Li ions at atomic resolution is hard, seeing the missing ones? Harder. Dasol's electron ptychography now images Li vacancies in a battery cathode in 3D—atom column by atom column: pubs.acs.org/doi/10.1021/... @pubs.acs.org 🧪⚛️
Atomic-Scale Imaging of Lithium Vacancies in a Battery Cathode by Multislice Electron Ptychography
Atomic-resolution imaging of battery materials is critical for identification of local defects and structural variations, which are tied to battery performance. However, since battery materials are, b...
pubs.acs.org
Cornell's cows are absolutely out standing in their fields right now (all 2,000+ acres). Maybe the NYT just forgot we are an ivy again?
The New York Times@nytimes.com · 3mo agoIn @nytopinion.nytimes.com The problem on college campuses is not just that students lack civility, Michal Leibowitz writes, but that “our college education does almost nothing to develop the sense that what we do in our day-to-day lives resonates with people beyond ourselves.”
Atomic‑scale nickel. Zero precious metals. Serious fuel‑cell power—thanks in part to CCMR tools news.cornell.edu/stories/2026...
Nickel catalyst enables high-performance fuel cell free of precious metals | Cornell Chronicle
Cornell researchers have developed a non-precious-metal catalyst that represents a major step toward alkaline fuel cells that use inexpensive commodity metals, such as nickel and cobalt, in several en...
news.cornell.edu
@sciencex.bsky.social ex.bsky.social picked up our #ptychography paper on imaging the atomic-scale roughness in transistor channels in 3D, in a single scan and without having to tilt the sample. ⚛️
Bluesky
ex.bsky.social
Science X / Phys.org@sciencex.bsky.social · 5mo agoHigh-resolution 3D electron microscopy has enabled direct visualization of atomic-scale "mouse bite" defects in semiconductor transistors, offering new insights for chip characterization and development. doi.org/hbq6sc
Bluesky is the new science Twitter, new study by @whysharksmatter.bsky.social and Julia Wester concludes! "Results show that for every reported professional benefit that scientists once gained from Twitter, scientists can now gain that benefit more effectively on Bluesky than on Twitter."
Scientists no Longer Find Twitter Professionally Useful, and have Switched to Bluesky
Synopsis. Social media has become widely used by the scientific community for a variety of professional uses, including networking and public outreach. For
academic.oup.com
The offical citation is "For developing a new generation of electron detectors and reconstruction algorithms leading to the highest resolution electron microscope." www.nae.edu/345149/NAENe... or as a friend joked "the academy award goes to David for the best picture" 🧪 ⚛️ #NAE
National Academy of Engineering Elects 130 Members and 28 International Members
The National Academy of Engineering (NAE) today announced the election of 130 members and 28 international members to its Class of 2026, said NAE President ...
nae.edu
Cryo Mariena@cryomariena.bsky.social · 6mo agoMany congrats to our fearless leader @davidamuller.bsky.social www.nae.edu/19579/31222/...
Given the weather today, it’s time to repost my favorite phase diagram: Nakaya’s snow crystal morphology. We are towards the bottom right today. 🧪 ⚛️ #cryoEM
While Cornell has field theorists, we also have practitioners
Imaging hydrogen atoms with ptychography
@schuylerzixiaoshi.bsky.social · 10mo agoHydrogen, the universe’s most abundant atom, is also the hardest to see in solids. Using electron ptychography, we directly reveals hydrogen’s hidden structures inside metals, as reported in our JACS paper (pubs.acs.org/doi/10.1021/...). @davidamuller.bsky.social @jacs.acspublications.org
Jim West's group taught us everything we know about building ultra-quiet rooms
Ainissa Ramirez, PhD@ainissaramirez.bsky.social · 10mo agoSPARK sighting at @possible-futures.bsky.social! Less than two weeks till it's available at a bookstore near you! Share the story of Jim West and his invention of the microphone we all use today on Zoom, phones 🎤 Preorder here: bit.ly/SPARKbk #WomeninSTEM 🧪 #SciArt #Booksky #Science #Blacksky
#cryoEM 🧪⚛️ Lena’s paper on imaging thick biological sections with STEM is finally published! We started this work almost 10 years ago. After Lena passed in 2023, I spent much of my sabbatical working with Yue and Steve to wrap this up. Also learned a lot about TEM vs STEM dose efficiency
Nature Methods@natmethods.nature.com · 11mo agoTilt-corrected bright-field scanning transmission electron microscopy (tcBF-STEM) offers enhanced contrast and dose efficiency for cryo-EM in thick biological specimens. www.nature.com/articles/s41...
Our new zippy ptychography code, PtyRAD is now out in print. 3D Multislice reconstructions that used to take a day, now can be done in about an hour! 🧪⚛️ #ptycho paper and install links: academic.oup.com/mam/article/...
PtyRAD: A High-Performance and Flexible Ptychographic Reconstruction Framework with Automatic Differentiation
Abstract. Electron ptychography has recently achieved unprecedented resolution, offering valuable insights across diverse material systems, including in th
academic.oup.com
Our hands-on workshop on Electron #Ptychography ! ⚛️🧪 using our new fast python code starts tomorrow, Tuesday, July 8. Lecture Schedule is below, for folks who want to listen in on-line. We hope to post the tutorial and code walk through videos later. cornell.zoom.us/j/9512638476...
Took a break and conducted some pier review last week. 12/10
One of my favorite things is seeing how publishers around the world reinterpret covers for foreign language editions of our books. The Alchemy of Us is being published in Korean. A side by side comparison -- same great content, totally different vibe.
Celebrating Hari’s thesis defense with a NaNbO3-themed cake. It is layered in 3D to match his paper rdcu.be/eiV0u
The end of US leadership in science, technology, and innovation. All in one little table. A tremendous gift to China, courtesy of the GOP. nsf-gov-resources.nsf.gov/files/00-NSF...
So the crazy thing here is the company this is supposed to be about is Corning. The company famous for its glass research. And the across the board metric is a measure of how similar individual atom positions are in their CRYSTAL structures. So much is nuts here, but that should have been a red flag
“From chocolate chips to computer chips” 🧪⚛️
Cornell Center for Materials Research (CCMR)@cornellccmr.bsky.social · last yr.Discover the cutting-edge characterization facilities at the Cornell Center for Materials Research (CCMR).Reach out to schedule a visit or discuss your needs! More info on becoming a user can be found here: www.ccmr.cornell.edu/facilities/b...
Betteridge's law: "Any headline that ends in a question mark can be answered by the word no."
Pam Herd@pamherd.bsky.social · last yr.There is a NSF FAQ includes questions like: "Can I still work with Minority Serving Institutions (MSIs)" and "There are still gaps in the achievements of certain groups of people. Can we still research those?"
We're holding a hands-on workshop on Electron #Ptychography ! ⚛️🧪 using our new fast python code When: July 8-11, Cornell University, Ithaca NY Organizers: David Muller, Jim LeBeau, Steve Zeltmann Applications on a rolling basis until full www.ccmr.cornell.edu/facilities/p...
This has been going for a while. When I worked at Lumon, erm Lucent Technologies in the late 90’s this similarity was also noted, but that is was also inflamed. Still an improvement on the previous deathstar logo
T. Greg Doucette@gregdoucette.bsky.social · last yr.Unexpectedly scientific look into why so many AI company logos resemble... ::ahem::... velvetshark.com/ai-company-l...